Power-transmitting mechanism.



C. J. MENGBS.

rowBR TBANSMITTING MEGHANISM.

.APPLIUATIOK FILED DBO. 27, 1909.

Patented May 16,1911.r

IN VEN T 0l? W/TNSSES.

S mo m um MU J. S.v, 6B .n a h im CHARLES J'. MNGES, OF ST. LOUIS,MISSOURI.

' Specification of Letters Patent.

POWER-TRANSMITTING MECHANISlVl.

Application led December 27, 1909. Serial No. `535,033.

To all whom it may concern:

Be it known that I,.CHARLES J. MENGES, a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulPower-Transmitting Mechanism, of which t-he following is such a full,clear, and exact description as will enable any one skilled in the artto which it appertains to make and use thersame, reference being had tothe accompanying drawings, forming part of t-his specification. f

My invention relates to power transmission mechanism and moreparticularly to mechanism by ineansof which rotary motion can beimparted to a. shaft or other device from intermittent longitudinalmovement of a cable or cord.

In the accompanying drawings which illustrate one form kof mechanismmade in accordance with my invention, Figure 1 is avertical'longitudinal section; Fig. 2 is an end view; Fig. 3 is asection on the line 3 3 of Fig. 1; Fig. 4 is a detailed view showing aslight modification and Fig. 5 is a section on the line 5 5 of Fig. 1.

Like marks of reference refer to similar parts in the several views inthe drawings.

10 is the shaft to which the power is to be transmitted. Loosely mountedupon this shaft 10 is a non-rotary memberll and a ratchet wheel 12 whichis provided with a hub 13. Mounted upon the hub 13 of the ratchet 12 andthe non-rotary member 11 is a hollow drum 14. In mounting this drum Iprefer to use ball bearings 15, as shown in Fig. 1. The non-rotarymember 11 yhas a.

portion which projects through the end of the drum 14 at o-ne end whilethe hub 13 )rejects through the other end of the drum. Secured to theprojecting portion of the non-rotary member 11 by means of screws 1G isa disk17. This disk 17 isprovided with a pin 18 byrmeans of which it isattached to any suitable fixed object to prevent the rotation of thepart 11. This pin 18 may be also connected with suitable devices(notshown) for shifting the drum 14 `longitudinally on the shaft 10.Wound around the periphery of the 'drum 14 in a groove 19 is a rope orcable20 by means of which' motion is imparted to the drum.V

Within the drum 14 isa coil spring'21, one

end of which is attached to the periphery of the drum by means of ascrew 22 and the other to a non-'rotary member 11 hy means of a screw23. This spring is so arranged that it is tightened when the rope 20' isdrawn off the drum and when the rope is released the drum willconsequently be rotated into its initial position to again wind the rope2O thereon. Carried by the drum 14 are a number of pawls 24 which engagewith the teeth of the ratchet wheel 12. It will be evident that whenmotion is imparted to the drum 14 by means of the rope 2O anintermittent forward movement will be Aimparted to the wheel 12 by meansof the pawls 24. The pawls 24 are pivoted to the drum 14 at 25, as shownin Fig. 3. In place, however, of usingpivoted pawls I may use pawls 26,

Patented May ic, 191i.

as shown in Fig. V4, which pawls slide radithe drum 14 so as to bringthe teeth 30 into engagement with the grooves 29, the ratchet wheel 12andthe shaft 10 will be rigidly connected together so that the movementof the wheel will be imparted to the shaft. Either the wheel or theshaft may be moved but as hereinbefore described I prefer to move thedrum or casing 14- by means of the pin 18 in the disk 17. In case it isdesired to use thepower of the mechanism for other purposes than drivingthe shaft10, a gear wheel may be rigidly'secured to the hub 13 of thewheel 12, as shown in Figs. 1 and 2.

Having fully described my invention, what I-'claim as new and desire tosecure by Letters'Patent of theUnited States, is:

1. The combination with a rotary shaft, of a drum forming a casing andloosely mounted on said shaft, said drum having an actuating cord woundon its periphery, a non-rotary member loosely mounted on said shaft andextending into the interior of said drum at one end, a spring attachedat one end of said drum and at the other to said .said ratchet wheel,and a connection between said shaft and the hub of said ratchet wheel.

2. The combination with a rotary shaft, of a drum forming a casing andloosely mounted on said shaft, said drum having an actuating cord woundon its periphery, a non-rotary member loosely mounted on said shaft andextending into the interior of said drum at one end, a spring attachedat one end to said drum and at the other end to said non-rotary member,a ratchet wheel situated within said drum and provided with a hubextending through said drum at the end opposite said non-rotary member,said ratchet wheel being loosely mounted on said shaft7 a pawl carriedby said drum and engaging with said ratchet wheel, anti-frictionbearings carried by said drum and running on said non-rotary member andthe hub of said ratchet wheel, and a member carried by saidr shaft andadapted to engage with the hub, of said ratchet wheel, whereby therelative longitudinal movement of said shaft and drum throws the deviceinto and out of operation.

In testimony whereof, I have hereunto set my hand and affixed my seal inthe presence of the two subscribing witnesses.

CHARLES J. MENGES. [Ls] Witnesses:

W. A. ALEXANDER,

ELIZABETH BAILEY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents Washington, D. C.

